2356.  A person having AB-group of blood can donate blood to a person having

a

  AB-group

b

 B-group

c

 O-group

d

 A-group

Answer & Explanation
Answer : Option A
Explanation :
AB-group.If a person belongs to the blood group AB, he has both A & B antigens on the surface of his red blood cells & no A or B antibodies at all in his blood plasma. So he can donate blood to those having AB blood group; but can receive blood from AB, A, B, & O groups.

2357.  The commonly used coolant in refrigerators is

a

  Oxygen

b

 Nitrogen

c

 Freon

d

 Ammonia

Answer & Explanation
Answer : Option C
Explanation :
Freon.Modern refrigerators usually use a refrigerant called HFC- 134a (1,1,1,2-Tetrafluoroethane), which does not deplete the ozone layer, instead of Freon. Ammonia was also used a a common refrigerant in old refrigerators. Freon used to be the most common refrigerant till the 1980s; however, its use has declined since the 1990s as it comes under Chlorofluorocarbon (CFC). However, Freon still remains the most commonly used refrigerant. Hydrochlorofluorocarbon (HCFC), is a type of refrigerator coolant used in newer refrigerator models. The types and categories used today include HFC-134a, HCFC-142b & HCFC-22.

2358.  An eardrum is absent in:

a

  snakes

b

 tuatara

c

 turtles

d

 toads

Answer & Explanation
Answer : Option A
Explanation :
snakes.The ear has three main parts: the outer, middle & inner ear. The middle ear is filled with air & contains three tiny bones called ossicles - the anvil, hammer & stirrup. The outer ear consists of the pinna & the auditory canal. The inner ear contains the semicircular canals & the cochlea. Eardrum is the membrane of middle ear. Snakes have fully developed inner ear structures but no eardrum.

2359.  Which among the given correctly explains the phenomenon of 'Test Tube Baby' -

a

  When the fertilisation is internal & development is external.

b

 When the fertilisation is external & development is internal.

c

 When every process of embryo formation is in the test tube.

d

 When the embryo develops in a test tube.

Answer & Explanation
Answer : Option B
Explanation :
When the fertilisation is external & development is internal.. In vitro fertilization (IVF) is a process by which an egg is fertilized by sperm outside the body: in vitro. Test tube baby is born from in vitro fertilization. When a woman's natural cycle is monitored to collect a naturally selected ovum (egg) for fertilization, it is known as natural cycle IVF. The fertilized egg (zygote) is then transferred to the patient's uterus with the intention of establishing a successful pregnancy.

2360.  Which among the given listed is not a feature of organic farming -

a

  Very less energy consumption

b

 Use of synthetic fertilizers

c

 The non-use of chemical fertilizers & pesticides

d

 Soil is nurtured for furture use by maintaining micro-organisms

Answer & Explanation
Answer : Option B
Explanation :
Use of synthetic fertilizers.Organic farming is a form of agriculture that relies on techniques such as crop rotation, green manure, compost, & biological pest control. It uses fertilizers & pesticides if they are considered natural (such as bone meal from animals or pyrethrin from flowers), but it excludes the use of synthetic petrochemical fertilizers & pesticides, plant growth

2361.  The substrate of photorespiration is

a

  Glucose

b

 Pyruvic acid

c

 Fructose

d

 Glycolate

Answer & Explanation
Answer : Option D
Explanation :
Glycolate.Photorespiration is a special type of respiration shown by many green plants when they are exposed to light. Other important metabolites are the amino acids glycine Glycolate (glycolic acid) is the chief metabolite of photorespiration & also its substrate.

2362.  Study of newly born up to the age of 3 months is called

a

  Nematology

b

 Neonatology

c

 Chorology

d

 Conchology

Answer & Explanation
Answer : Option B
Explanation :
Neonatology is a subspecialty of pediatrics that consists of the medical care of newborn infants, especially the ill or premature newborn infant. It is a hospital-based specialty, & is usually practiced in neonatal intensive care units (NICUs). The main patients of neonatologists are newborn infants who are ill or requiring special medical care due to prematurity, low birth weight, intrauterine growth retardation, congenital malformations (birth defects), sepsis, pulmonary hyperplasia or birth asphyxias.

2363.  Consider the following organisms 1. Agaricus 2. Nostoc 3. Spirogyra Which of the above is/ are used as biofertiliser/biofertilisers?

a

  1 and 2

b

 Only 2

c

 2 and 3

d

 Only 3

Answer & Explanation
Answer : Option C

2364.  Which among the given weeds has been found useful to check water pollution caused by industrial effluents -

a

  Parthenium

b

 Both (1 ) & (2 )

c

 Water hyacinth

d

 Elephant grass

Answer & Explanation
Answer : Option B
Explanation :
Parthenium & Elephant grass are useful to check water pollution caused by industrial effluents.

2365.  Which one of the following groups of animals belongs to the category of endangered species?

a

  Great Indian Bustard, Musk Deer, Red Panda and Asiatic Wild Ass

b

 Snow Leopard, Swamp Deer, Rhesus Monkey and Saras (Crane)

c

 Lion-tailed Macaque, Blue Bull, Hanuman Langur and Cheetal

d

 Kashmir Stag, Cheetal, Blue Bull and Great Indian Bustard

Answer & Explanation
Answer : Option A

2366.  Adventitious roots develop from

a

  Epidermis

b

 Pericycle or interfascicular parenchyma

c

 Endodermis

d

 Cortex

Answer & Explanation
Answer : Option B

2367.  Bacteria do not need sunlight to grow because

a

  They prepare their food without the help of sunlight

b

 They use other kinds of light for their food synthesis

c

 They lack chlorophyll and so they are incapable of making their own food

d

 They hate sunlight

Answer & Explanation
Answer : Option A

2368.  In the eye donation, which part of the eye is transplanted from the donor?

a

  Lens

b

 The whole eye

c

 Cornea

d

 Retina

Answer & Explanation
Answer : Option C

2369.  Which of the following one of the following glands is responsible for secretion of sex hormones -

a

  Thyroid gland

b

 Adrenal gland

c

 Pituitary gland

d

 Sebaceous gland

Answer & Explanation
Answer : Option C
Explanation :
Pituitary gland.The pituitary is sometimes referred to as the master glandas it controls hormone functions such as our temperature"

2370.  Normal blood pressure of man is

a

  85/120 mm Hg

b

 80/120 mm Hg

c

 120/160 mm Hg

d

 90/140 mm Hg

Answer & Explanation
Answer : Option B
Explanation :
80/120 mm Hg.Normal blood pressure is considered to be at or below 120 over 80 (120/80). Normally, blood pressures are usually categorized into three groups: low (90/60 or lower), high (140/90 or higher), & normal (values above 90/60 & below 130/80).

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